121010200111001 has 24 divisors (see below), whose sum is σ = 139978767072000. Its totient is φ = 104177031323904.

The previous prime is 121010200110983. The next prime is 121010200111007. The reversal of 121010200111001 is 100111002010121.

It is not a de Polignac number, because 121010200111001 - 2³⁰ = 121009126369177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010200111007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379804841 + ... + 380123318.

It is an arithmetic number, because the mean of its divisors is an integer number (5832448628000).

Almost surely, 2^{121010200111001} is an apocalyptic number.

It is an amenable number.

121010200111001 is a deficient number, since it is larger than the sum of its proper divisors (18968566960999).

121010200111001 is a wasteful number, since it uses less digits than its factorization.

121010200111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759928241 (or 759928224 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121010200111001 its reverse (100111002010121), we get a palindrome (221121202121122).

The spelling of 121010200111001 in words is "one hundred twenty-one trillion, ten billion, two hundred million, one hundred eleven thousand, one".